All Onkyo and Integra receivers use the same IR code-set. If Harmony do not have the Audyssey codes set up for your particular model try using a different one. Which Onkyo do you have?Here are the codes in Pronto CCF format for a lot of different receivers:http://www.awe-europe.com/ir_232.htmlIf you download the spreadsheet for your model you can see which codes it is capable of responding to.

If you had 2 harmony remotes you could put the codes on one and teach it to the other.Does the codes for the 607 work on your 809, you could add the 607 as a phantom device and map a button to its codes.

Pity my other Harmony's USB port is dead.. but I like the idea! I may just try and switch the remote over to another Onkyo receiver to see if that one has it. After I yell at the support manager for awhile.